I won't say who I fly for, but it is in the Top 50. I can't imagine a better place to work. New equipment, with more on the way. Good pay with outstanding benefits (bonus, real retirement, med, dental, insurance, moving, etc, etc). Very liberal standards on hotels, rstaurant spending. No requirement to show up everyday with your thumb inserted. You can work from home, if you have an outside job. Senior company leadership gives super support to the aviation department and the Av Manager & Chief Pilot are really good guys who look out for the line guys. Our current group of pilots and technicains are great to work with and I know of zero personal conflicts within the department. We have zero turnover and some guys have been with the company 35 years. I have to say I wouldn't have been hired if I didn't fill a very exact set of requirements to fill a side job, so you really have to know someone to get hired at this place. The only down side is some of our destinations, not exactly Club Med. But on the plus side, they sell beer just about everywhere we go. As long as we don't get gobbled up in a buy out, I see myself staying here until I can retire a second time. I count myself very lucky after flying cut rate Part 91 after my military career.
I fly for a Fortune 100 and echo the same comments that Jetdriver mentions. I also know of some privately held companies that do pretty well for themselves. It probably is all over the board in the end. I guess you just have to find that flight department that fits your needs and wants and keep your fingers crossed.